CN2514532Y

CN2514532Y - Expansion connector for high-voltage cable terminal

Info

Publication number: CN2514532Y
Application number: CN 01259052
Authority: CN
Inventors: 高旭昌
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-09-10
Filing date: 2001-09-10
Publication date: 2002-10-02
Anticipated expiration: 2011-09-10

Abstract

A high-pressure cable terminal tensioned joint employs the structure of pretensioned terminal joint orifice. The utility model is provided with a tensioned cover which comprises a plurality of clavuses, and the end of each clavus is provided with a retaining ring, and the retaining body on each retaining ring is used to fix the tensioned cover and the clavuses as a tensioned body. The clavuses of the tensioned cover are manually furled and are placed in the through hole of the joint or are inserted into the through hole of the joint via a smelting mould to extend the caliber of the through hole, and the joint of pretensioned orifice is formed after moving back from the smelting mould. Only a cable is needed to be coated with silicon oil balm and be inserted into the through hole of the joint to be positioned, and then the assembly is finished after the tensioned cover and the retaining rings are disassembled. The utility model can be assembled very quickly, and the structures of the component parts are very simple, thereby saving a great deal of materials, manual power, and working hours.

Description

Hv cable termination supports joint

Technical field

The utility model belongs to field of cables, relates to cable joint, and particularly a kind of hv cable termination supports joint.Specifically be meant a kind of can open in advance the mouth of pipe be beneficial to cable plant into the hv cable termination with the nozzle structure that can support support joint.

Background technology

The structure of existing general high voltage tag has following several form approximately:

One, with reference to Fig. 1, be a kind of pre-cast (Premold or Pre-Fabricated) extruding type, be with insulation dish cap 10 that can overlapping combination, be provided with the perforation 10a that directly conforms to cable 100 lines in the middle of it, during combination with the lubricated insulation of holding concurrently of silicone oil cream, but because of the rubber friction very big, need to clamp-on combination firmly with manpower, constructional difficulties, and because of this insulation dish cap 10 be an ejaculation thing, the contraction of this perforation 10a is difficult to control, as easily damaging because of rainwater infiltrates short circuit after the too big use of this perforation 10a.

Two, with reference to Fig. 2, be a kind of pre-thermal shrinkage type (Heat-Shrink), this joint 11 is established a bore than large perforation 11a, for the material of thermal contraction is made, during combination cable 100 is coated with special solid and inserts the perforation 11a of joint, evenly toast joint 11 appearances with torch flame again, make its contraction tighten cable.But the extremely difficult control flame of this roasting mode is easily with the joint scaling loss.

Three, with reference to Fig. 3, be a kind of pre-cold-contraction type (Cold-shrink), be to utilize a high joint 11 that shrinks to insert its perforation 11a to expand this perforation bore with the smelting tool, row is inserted a central column screw thread that is coiled into strip shape body and is opened cover 12 (Fig. 4) and the smelting tool is withdrawed from again, promptly form a pre-joint 11 of opening, during its combination be with cable 100 surfaces be coated with silicone oil cream plant in the perforation 11a of joint 11 and with hold screw thread open the beginning of cover slowly extract out after the perforation 11a of this joint tighten cable.But this a chain for binding criminals line is opened cost height, the quantity of material height of cover 12.

Summary of the invention

Because the disappearance of above-mentioned prior art, the purpose of this utility model be to provide a kind of opened in advance the terminal fitting mouth of pipe be beneficial to cable plant into the hv cable termination with the nozzle structure that can support support joint, and can save material cost and manpower man-hour.

The purpose of this utility model is achieved in that

A kind of hv cable termination supports joint, it is characterized in that, have one and be provided with the cover that supports of several calvus along its cylindric circumscribed profile cylinder, this support the calvus of cover terminal be interlocked to connect with a clasp form one and support body.And

To be the silver that is provided with button by two ends with the button at its two ends be interlocked this clasp forms;

The axial cross section shape that this clasp and this support the cover junction is a rectangle;

The axial cross section shape that this clasp and this support the cover junction is a flute profile, in this flute profile, have one with support the small embossment that cover fastens;

The axial cross section shape that this clasp and this support the cover junction is a rectangle, this rectangle inboard have one with support the small embossment that cover fastens.

Because the utility model has adopted the structure of opening the terminal fitting mouth of pipe with pre-, its principal character is to be provided with a cover that supports with several calvus, and this calvus end that supports cover is provided with clasp and by button the two is buckled and form one admittedly and support body.Its clasp is a silver, and the front and back end is provided with button and is interlocked and forms a ring body and the corresponding fastening of calvus end.This supports the pre-joint of opening is by manually bringing the bore that the calvus that supports cover is inserted in the perforation of joint or is supported the expansion perforation with the perforation of smelting tool insertion joint together, insert one and support cover, and interlock solid with clasp and the calvus that supports cover, withdraw from the smelting tool and promptly form a pre-joint of opening the mouth of pipe, only need get a cable surface be coated with insert the perforation location that supports body of joint with silicone oil cream after, unload and support cover and promptly make up and finish with clasp, its combination extremely fast, and its modular construction is very simplified, really escapable cost, manpower man-hour.

Description of drawings

Fig. 1, be the structural representation one of known hv cable termination joint;

Fig. 2, be the structural representation two of known hv cable termination joint;

Fig. 3, be the structural representation three of known hv cable termination joint;

Fig. 4, open the nested structure schematic diagram for the central column screw thread of known hv cable termination joint;

Fig. 5, for the structural representation that supports of the present utility model;

Fig. 6, for the STRUCTURE DECOMPOSITION schematic diagram that supports of the present utility model;

Fig. 7, be the structural representation that cramp of the present utility model forms clasp;

Fig. 8, be one of snap ring structure of the present utility model schematic diagram;

Fig. 9, be two schematic diagrames of snap ring structure of the present utility model;

Figure 10, be three schematic diagrames of snap ring structure of the present utility model;

Figure 11, be one of combination schematic diagram of the present utility model;

Figure 12, be two of combination schematic diagram of the present utility model;

Figure 13, be three of combination schematic diagram of the present utility model;

Figure 14, be four of combination schematic diagram of the present utility model.

The piece number explanation:

Insulation dish cap 10 perforation 10a, 11a

Joint 11 screw threads are opened cover 12

Cable 100 supports body 200

Support cover 20 calvus 21

Clasp 22 smelting tools 30

Embodiment

The utility model is that a kind of hv cable termination supports joint, be meant especially a kind of opened in advance the terminal fitting mouth of pipe be beneficial to cable plant into structure, its principal character (referring to Fig. 5,6) be one be provided with several calvus 21 support cover 20, this supports cover calvus 21 ends of 20 and is provided with clasp 22 and by button the two is buckled and form one admittedly and support body 200.

By shown in Figure 7, clasp 22 is a silver, and the front and back end is provided with button and is interlocked and forms a ring body, and the button (referring to Fig. 8,9,10) that these clasp 22 surfaces are provided with variety of way is able to and calvus 21 terminal corresponding fastenings.

Shown in 11 figure, be the body 200 pre-schematic diagrames of opening the perforation 11a of joint 11 that support of the present utility model, be by manually bringing the bore that the calvus 21 that supports cover 20 is inserted in the perforation 11a of joint 11 or is supported expansion perforation 11a with the perforation 11a of smelting tool insertion joint 11 together, insert one and support cover 20, and interlock solid with clasp 22 and the calvus 21 that supports cover 20, and withdraw from smelting tool 30 and promptly form a pre-joint 11 (Figure 12) of opening, only need get after a cable 100 surfaces are coated with the perforation that supports body 200 of inserting joint with silicone oil cream and go into location (Figure 13), unload and support cover 20 and promptly make up and finish (Figure 14) with clasp 22, it makes up extremely fast can save manpower man-hour.

Claims

1, a kind of hv cable termination supports joint, it is characterized in that, have one and be provided with the cover that supports of a plurality of calvus along its cylindric circumscribed profile cylinder, this support the calvus of cover terminal link to knot to close with a clasp form one and support body.

2, hv cable termination supports joint according to claim 1, it is characterized in that, this clasp is to be interlocked with its two ends button by the silver that two ends are provided with the button that mutually coincide to constitute.

3, hv cable termination supports joint as claimed in claim 1 or 2, it is characterized in that, the axial cross section shape that this clasp and this support the cover junction is a rectangle.

4, hv cable termination supports joint as claimed in claim 1 or 2, it is characterized in that, the axial cross section shape that this clasp and this support the cover junction is a U-lag, have in this U-lag one with support the small embossment that cover fastens.

5, hv cable termination supports joint as claimed in claim 1 or 2, it is characterized in that, the axial cross section shape that this clasp and this support the cover junction is a rectangle, this rectangle inboard have one with support the small embossment that cover fastens.